@patent{laufenberg,
  author       = {Laufenberg, Xaver and Eynius, Dominique and Suelzle, Helmut
                  and Usbeck, Stephan and Spaeth, Matthias and Neuser-Hoffmann,
                  Miriam and Myrzik, Christian and Schmid, Manfred and Nietfeld,
                  Franz and Thiel, Alexander and Braun, Harald and Ebner,
                  Norbert},
  title        = {Elektrische Einrichtung und Betriebsverfahren},
  number       = 1700367,
  date         = {2006-09-13},
  holder       = {{Robert Bosch GmbH} and {Daimler Chrysler AG} and {Bayerische
                  Motoren Werke AG}},
  type         = {patenteu},
  url          = {http://v3.espacenet.com/textdoc?IDX=EP1700367},
}

@patent{sorace,
  author       = {Sorace, Ronald E. and Reinhardt, Victor S. and Vaughn, Steven
                  A.},
  title        = {High-Speed Digital-to-{RF} Converter},
  number       = 5668842,
  date         = {1997-09-16},
  holder       = {{Hughes Aircraft Company}},
  type         = {patentus},
}
